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Technical Committee Update - Cool Roof Rating...
Transcript of Technical Committee Update - Cool Roof Rating...
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Membership Meeting
June 13, 2013
Technical Committee
Update
Image courtesy of DECRA Roofing Systems
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Exhibit 3 - Annual Membership Meeting 2013
Technical Committee
Roster 2012-2013
Voting Member Company Alternate Company
Bill Kirn Quest Construction Products Paul Riesebieter Soprema
Ronnen Levinson Lawrence Berkeley National Laboratory Hashem Akbari Concordia University
Andre Desjarlais Oak Ridge National Laboratory Rhonda Byrne Intertek
Gary Whittemore Sika Sarnafil, Inc. Mike Ennis Single-Ply Roofing Industry (SPRI)
Bill Morgan Malarkey Roofing Darrel Higgs DPH Consulting
Scott Kriner Metal Construction Association Chuck Praeger Metal Building Manufacturer's Association
Richard Slomko, Chair Atlas Material Testing Solutions Matthew Friday Q-Lab Weather Research Service
Ted Best Valspar Mark Thimons American Iron & Steel Institute
Jay Cruz Boral Roofing Rick Olson Tile Roofing Institute
Kurt Shickman Global Cool Cities Alliance Payam Bozorgchami California Energy Commission
David Roodvoets DLR Consultants Cindy Campbell Momentum Technologies
Steve Lawrey CertainTeed Corporation Ingo Joedicke Specialty Granules, Inc.
Kurt Sosinski Tremco, Inc. Tim McQuillen Firestone Building Products
Greg Peterson, Vice-Chair Eagle Roofing Yoshi Suzuki MCA Clay Tile
Hal Leland Western Colloid Frank Klink 3M
Dave Yarbrough R&D Services, Inc. Tyler Westerling Architectural Testing, Inc.
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Exhibit 3 - Annual Membership Meeting 2013
2012-2013
Updates &
Accomplishments
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Exhibit 3 - Annual Membership Meeting 2013
CRRC Funded Research
• CRRC Board allocated $15,000 for 2013
research projects
• Funded projects
– Electronic thickness gage round robin
– E1918 precision & bias study
– Directionally reflective product ratings
– Aggregate reflectance study
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Exhibit 3 - Annual Membership Meeting 2013
Interlaboratory Comparison
• Included AITLs and AMTLs
• Results showed high consistency between
labs’ reported values
• Reduction in reporting errors from 2011
• Staff investigating outlying data points
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Exhibit 3 - Annual Membership Meeting 2013
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Changes to Sample
Requirements
• Sample size measured to confirm CRRC
minimum dimensions*
– Tolerance +/- 1 inch per side
– Measured to nearest ¼ inch
– Confirmed on Test Results Report (F-2)
• New samples cannot be held without
exposure longer than six months
* To be approved by Board
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Exhibit 3 - Annual Membership Meeting 2013
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Approved Test Methods
Added:
Electronic gage coating thickness
• ASTM D7091 – Standard Practice for
Nondestructive Measurement of Dry
Film Thickness of Nonmagnetic
Coatings…
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Exhibit 3 - Annual Membership Meeting 2013
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Approved Test Methods
Added:
Best Practices for Sample Handling*
• ASTM G147 – Standard Practice for
Conditioning and Handling of
Nonmetallic Materials for Natural and
Artificial Weathering Tests
* To be approved by Board
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Exhibit 3 - Annual Membership Meeting 2013
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Tile Test Method Update
• Aged measurement point locations
same as initial for Template Method
• Randomly selected points are exempt
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Exhibit 3 - Annual Membership Meeting 2013
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Coating Substrate
Testing
• Informed by RCMA and RRCI
sponsored studies
• Field-applied coatings will be tested
and aged on smooth and rough
substrates
• Logistics and implementation date TBD
by Technical Committee
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Exhibit 3 - Annual Membership Meeting 2013
Variegated Shingle Test
Procedure
• Prepared mono-color shingles tested and aged
• Variegated shingles (final product) initially
tested
• Aged SR and TE values calculated based on
percentage of granule make-up
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Exhibit 3 - Annual Membership Meeting 2013
Cedar Test Method
• Test method confirmed by Technical
Committee
• No longer “interim” designation
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Exhibit 3 - Annual Membership Meeting 2013
Default Thermal
Emittance Values
• Technical Committee proposed assigning
generic TE values for tile products
• Not approved by Board, under further
discussion and investigation
Images courtesy of (L – R): Boral Roofing LLC, Redland Clay Tile
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Exhibit 3 - Annual Membership Meeting 2013
Current Studies &
Technical Issues
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Exhibit 3 - Annual Membership Meeting 2013
E1918 Precision & Bias
Laboratory testing
(complete)
Analyze study data with ASTM
Develop P&B
statement
Update E1918
standard
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Exhibit 3 - Annual Membership Meeting 2013
Directionally Reflective
Products
• Developing a rating and labeling method
for directional products
• Partnering with Hashem Akbari at
Concordia University
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Exhibit 3 - Annual Membership Meeting 2013
Aggregate Reflectivity
• Researching testing and rating methods
for aggregate and ballast products
• Collaboration with Lawrence Berkeley Lab
and A-1 Grit Company
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Exhibit 3 - Annual Membership Meeting 2013
ASTM E408
Consideration
• Collaborated with device
manufacturers to update E408
• Revision submitted to ASTM
Committee for approval
• Technical Committee to
reassess revised E408
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Exhibit 3 - Annual Membership Meeting 2013
Method Evaluation
• Evaluating Slide Method impacts via round
robin study
• Investigating if retesting of CRRC products
is required
• Will determine technical requirements of
retesting if needed
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Exhibit 3 - Annual Membership Meeting 2013
CRRC-1 Test Method 1
Precision Statement
• Conducting precision study for CRRC-1
Test Method 1
• Will evaluate repeatability and
reproducibility
• Study on hold until
round robins completed
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Exhibit 3 - Annual Membership Meeting 2013
Test Method #1 Point
Selection
• Investigating quasi-random point selection
technique
• Goal is to have faster convergence of
standard error
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Exhibit 3 - Annual Membership Meeting 2013
Upcoming Technical
Committee Meetings
• August 8 – Conference call
–2 hours (10 a.m. – 12 p.m. Pacific)
• October 24 – In-person
–San Francisco, CA
–All day
• Contact [email protected] to attend
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Exhibit 3 - Annual Membership Meeting 2013
Questions